A.FusionSphere application

B.DB2 application

C.SQL Server application

D.Oracle RAC application

A.In 2-way backup mode, NPS devices are used as main storage. The backup server sends requests to the NDMP host on the LAN to instruct NAS devices to start backup.

B.NAS devices send data to its directly-connected tape devices through optical fibers.

C.During backup, files and directories on tapes are transferred to the backup server through the NDMP host on the LAN. The backup server generates indexes to maintain these files and directories.

D.In 2-way backup mode, data is transferred from disks on the NDMP host to the tapes on the same NDMP host, Backup dab is not transferred over a LAN.

A.Active-Passive DR Solution

B.Geo-Redundant Solution

C.Local HA Solution

D.Active-Active DC Solution

A.As the root directory of the entire system, the namespace cannot be shared or accessed. Only the subdirectories below it can be shared and accessed.

B.A unified namespace provides users with a unified storage resource pool to achieve centralized management and allocation of storage space.

C.The namespace is automatically created when 0ceanStor 9000 is started, and its name is consistent with the system naming.

D.Each file sharing directory is a subdirectory of the namespace.

A.Session layer

B.Physical layer

C.Data Exchange Layer